Yasushi Yokoyama

Structurally Versatile Novel Photochromic Bisarylindenone and Its Acetal: Achievement of Large Cyclization Quantum Yield

Kaori Morinaka, Takashi Ubukata, Yasushi Yokoyama · Organic Letters · 2009 · 110 citations

Chemical Engineering, Derivatives, Engineering +10

Usefulness of endoscopic aspiration mucosectomy as compared with strip biopsy for the treatment of gastric mucosal cancer

Satoshi Tanabe, Wasaburou Koizumi, Mikio Kokutou et al. · Gastrointestinal Endoscopy · 1999 · 95 citations

Endoscopic Aspiration Mucosectomy, Gastric Mucosal Cancer, Medicine +8

Diastereoselective Photochromism of an (<i>R</i>)-Binaphthol-Condensed Indolylfulgide

Yasushi Yokoyama, Soichi Uchida, Yayoi Yokoyama et al. · Journal of the American Chemical Society · 1996 · 89 citations

Derivatives, Diastereoselective Photochromism, Photochemistry +12

Reversible Control of Pitch of Induced Cholesteric Liquid Crystal by Optically Active Photochromic Fulgide Derivatives

Yasushi Yokoyama, Toshiya Sagisaka · Chemistry Letters · 1997 · 85 citations

Derivatives, Engineering, Reversible Control +14

Diastereoselective Photochromism of a Bisbenzothienylethene Governed by Steric as Well as Electronic Interactions

Yasushi Yokoyama, Hidenori Shiraishi, Yutaka Tani et al. · Journal of the American Chemical Society · 2003 · 84 citations

Organic Charge-transfer Compound, Chemical Engineering, Engineering +12